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A095784 Values of n for which A095777(n) is 15 (those terms which are expressible in decimal digits for bases 2 through 16, but not for base 17). 0
16, 33, 48, 84, 99, 256, 260, 261, 288, 512, 513, 592, 784, 785, 786, 787, 788, 789, 800, 801, 900, 915, 916, 917, 1040, 1041, 1380, 1381, 1395, 1400, 4400, 4401, 4416, 4609, 4610, 4611, 4624, 4628, 4629 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..39.

EXAMPLE

a(5)=99 because 99 when expressed in successive bases starting at 2 will produce its first non-decimal digit at base 17. Like so: 1100011, 10200, 1203, 344, 243, 201, 143, 120, 99, 90, 83, 78, 71, 69, 63. In base 17, 99 is 5E.

MAPLE

S := []; for n from 1 to 5000 do; if 1>0 then; ct := 0; ok := true; b := 2; if (n>9) then; while ok=true do; L := convert(n, base, b); for e in L while ok=true do; if (e > 9) then ok:=false; fi; od; if ok=true then; ct := ct + 1; b := b + 1; fi; od; fi; if ct=15 then S := [op(S), n]; fi; fi; od; S;

CROSSREFS

Cf. A095777.

Sequence in context: A151981 A110472 A110502 * A041502 A041500 A132758

Adjacent sequences:  A095781 A095782 A095783 * A095785 A095786 A095787

KEYWORD

base,nonn

AUTHOR

Chuck Seggelin (seqfan(AT)plastereddragon.com), Jun 05 2004

STATUS

approved

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Last modified August 12 11:44 EDT 2020. Contains 336439 sequences. (Running on oeis4.)